CN205591056U - Freeze proof bloated ballastless track roadbed structure of rich irrigated land base - Google Patents
Freeze proof bloated ballastless track roadbed structure of rich irrigated land base Download PDFInfo
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- CN205591056U CN205591056U CN201620040871.0U CN201620040871U CN205591056U CN 205591056 U CN205591056 U CN 205591056U CN 201620040871 U CN201620040871 U CN 201620040871U CN 205591056 U CN205591056 U CN 205591056U
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- ballastless track
- rich water
- roadbed structure
- rich
- coat
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Abstract
The utility model provides a freeze proof bloated ballastless track roadbed structure of rich irrigated land base to effectively improve the freeze proof bloated deformation effect of low embankment of ballastless track high -speed railway and cutting, be convenient for in addition construct. It includes: the reinforced concrete drilled pile, way along the line longitudinal separation sets in a row, the loading board sets up at reinforced concrete drilled pile top and concreties with it, the screed -coat sets up on the base of the rich irrigated land, the buffering supporting layer sets up between loading board and screed -coat, the track board sets up at the loading board top and concreties with it.
Description
Technical field
This utility model relates to Geotechnical Engineering, particularly to a kind of frozen ground regions rich water ground non-fragment orbit railway low embankment and the frost heaving resistant problem of cutting.
Background technology
A large amount of rich water ground is distributed in frozen ground regions, such as soft soil foundation, rich water cutting that level of ground water is shallower and low embankment etc., rich water ground in the range of the depth of freezing is when circular temperature loads, bigger frost heave can occur and melt deformation, when non-fragment orbit high-speed railway with low embankment or cutting form by this rich water ground time, occur excessive frost heave and melt deformation will badly influence the operation security of railway, there is presently no preferable way to solve this problem, therefore the problem that urgently a kind of rich water ground frost heaving resistant ballastless track roadbed structure of needs solves to exist, need that there is economy simultaneously, the feature such as environmental protection and easy construction.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of rich water ground frost heaving resistant ballastless track roadbed structure, to be effectively improved the frost heaving resistant deformation effect of non-fragment orbit high-speed railway low embankment and cutting, and is easy to construction.
It is as follows that this utility model solves the technical scheme that its technical problem used:
A kind of rich water ground frost heaving resistant ballastless track roadbed structure of the present utility model, is characterized in that it includes: reinforced concrete drilling stake, is longitudinally spaced into row along circuit and arranges；Loading plate, is arranged on reinforced concrete drilling stake top and consolidates therewith；Screed-coat, is arranged on rich water ground；Cushioning supportive layer, is arranged between loading plate and screed-coat；Track plates, is arranged on loading plate top and consolidates therewith.
The beneficial effects of the utility model are, can effectively solve frozen ground regions rich water ground non-fragment orbit high-speed railway low embankment and the problem of cutting anti-freeze expansion, have that frost heaving resistant deformation effect is good, easy construction, economic dispatch feature, there is wide popularizing application prospect.
Accompanying drawing explanation
This specification includes following three width accompanying drawings:
Fig. 1 is the sectional schematic diagram of this utility model a kind of rich water ground frost heaving resistant ballastless track roadbed structure.
Fig. 2 is a kind of cushioning supportive layer schematic diagram of this utility model a kind of rich water ground frost heaving resistant ballastless track roadbed structure.
Fig. 3 is a kind of cushioning supportive layer Force principle schematic diagram of this utility model a kind of rich water ground frost heaving resistant ballastless track roadbed structure.
Component name shown in figure and corresponding labelling: reinforced concrete drilling stake 1, loading plate 2, screed-coat 3, cushioning supportive layer 4, plane waterproof layer 41, section waterproof layer 42, track plates 5, rich water ground A, soil supporting layer B.
Detailed description of the invention
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
With reference to Fig. 1, a kind of rich water ground frost heaving resistant ballastless track roadbed structure of the present utility model includes: reinforced concrete drilling stake 1, is longitudinally spaced into row along circuit and arranges；Loading plate 2, is arranged on reinforced concrete drilling stake 1 top and consolidates therewith；Screed-coat 3, is arranged on rich water ground；Cushioning supportive layer 4, is arranged between loading plate 2 and screed-coat 3；Track plates 5, is arranged on loading plate 1 top and consolidates therewith.Reinforced concrete drilling stake 1 bottom is stretched into the degree of depth of soil supporting layer B and is met non-fragment orbit settlement Control and limit the requirement of the anti-arch of loading plate 2.
See figures.1.and.2, utilize reinforced concrete drilling stake 1 as supporting course, support top loading plate 2 and train load, it arranges the degree of depth and meets non-fragment orbit high-speed railway settlement request, there is provided downward pulling force for loading plate 2, it is to avoid cushioning supportive layer 4 causes arch deformation under frost heave action to its upwards additional force produced simultaneously.Loading plate 2 is as roadbed surface structure, and supports upper rail guidance tape 5；Screed-coat 3 is utilized to carry out levelling to rich water ground, it is simple to construction cushioning supportive layer 4.Cushioning supportive layer 4 has elastic deformation and water proof thermal insulation function, waterproof earth working material can be used to make poroelasticity structure, have waterproof, insulation, lightweight, the feature such as stress and elastic deformation energy-absorbing of support, the deformation energy-absorbing function utilizing cushioning supportive layer 4 buffers the frost-heave force the hardest contact force effect to loading plate 2, insulation effect due to cushioning supportive layer 4, reduce the rich water ground A depth of freezing, thus frost-heave force reduces, the uplift force that reinforced concrete drilling stake 1 is born reduces, simultaneous buffering supporting layer 4 is alternatively arranged as the operation platform of loading plate 2, in addition cushioning supportive layer 4 can produce a support force upwards in the non-frost heave phase to loading plate 2, thus improve the stress of loading plate 2；Track plates 5 is train rail works.
With reference to Fig. 3, the operation principle of cushioning supportive layer 4 is: non-frost heave phase cushioning supportive layer 4 is due to the elastic elongation effect of self, and rich water ground A gives one support force F1 upwards, and cushioning supportive layer 4 transmits a support force F upwards to loading plate 21；When rich water ground generation frost heave action, the frost-heave force F of generation2Passing to cushioning supportive layer 4, cushioning supportive layer 4 occurs the elastic compression of △ L to deform, thus the power that cushioning supportive layer 4 passes to loading plate 2 is F3, F1<F3<F1+F2, cushioning supportive layer 4 occurs the elastic compression of △ L to deform the biggest F3The least.
This structure can effectively solve frozen ground regions rich water ground non-fragment orbit high-speed railway low embankment and the problem of cutting anti-freeze expansion, have that frost heaving resistant deformation effect is good, easy construction, economic dispatch feature, there is wide popularizing application prospect.
With reference to Fig. 2, described cushioning supportive layer 4 includes plane waterproof layer 41, section waterproof layer 42, and plane waterproof layer 41 is vertically spaced setting, and section waterproof layer 42 is filled between adjacent two plane waterproof layers 41.Cushioning supportive layer 4 has insulation, elastic deformation, energy-absorbing and support function, and its thickness is typically no less than 0.3m.Described loading plate 2 uses armored concrete to pour, and is designed by hanging structure bottom it.Described screed-coat 3 uses medium coarse sand to fill, and thickness is not less than 0.2m.
Some principles of the above this utility model a kind of rich water ground frost heaving resistant ballastless track roadbed structure that simply explains through diagrams, it is not intended to be confined to by this utility model in shown and described concrete structure and the scope of application, therefore every corresponding amendment being likely utilized and equivalent, belong to the apllied the scope of the claims of this utility model, the amendment made especially for cushioning supportive layer or replacement.
Claims (3)
1. a rich water ground frost heaving resistant ballastless track roadbed structure, is characterized in that it includes: reinforcing bar
Concrete drill hole stake (1), is longitudinally spaced into row along circuit and arranges；Loading plate (2), is arranged on reinforcing bar
Concrete drill hole stake (1) top also consolidates therewith；Screed-coat (3), is arranged on rich water ground (A)
On；Cushioning supportive layer (4), is arranged between loading plate (2) and screed-coat (3)；Track plates (5),
It is arranged on loading plate (1) top and consolidates therewith.
2. a kind of rich water ground frost heaving resistant ballastless track roadbed structure as claimed in claim 1, its
Feature is: described cushioning supportive layer (4) includes plane waterproof layer (41), section waterproof layer (42),
Plane waterproof layer (41) is vertically spaced setting, and section waterproof layer (42) is filled in adjacent two planes
Between waterproof layer (41).
3. a kind of rich water ground frost heaving resistant ballastless track roadbed structure as claimed in claim 1, its
Feature is: described screed-coat (3) uses medium coarse sand to fill, and thickness is not less than 0.2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620040871.0U CN205591056U (en) | 2016-01-17 | 2016-01-17 | Freeze proof bloated ballastless track roadbed structure of rich irrigated land base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620040871.0U CN205591056U (en) | 2016-01-17 | 2016-01-17 | Freeze proof bloated ballastless track roadbed structure of rich irrigated land base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205591056U true CN205591056U (en) | 2016-09-21 |
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ID=56926746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620040871.0U Withdrawn - After Issue CN205591056U (en) | 2016-01-17 | 2016-01-17 | Freeze proof bloated ballastless track roadbed structure of rich irrigated land base |
Country Status (1)
| Country | Link |
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| CN (1) | CN205591056U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544311A (en) * | 2016-01-17 | 2016-05-04 | 中铁二院工程集团有限责任公司 | Water-rich foundation frost-heaving-resistant ballastless track embankment structure |
| CN108130826A (en) * | 2018-01-18 | 2018-06-08 | 中铁二院工程集团有限责任公司 | A kind of karst railway bed substrate antidumping foundation reinforcing structure |
| CN110565449A (en) * | 2019-09-26 | 2019-12-13 | 中铁二院工程集团有限责任公司 | Anti-uplift and anti-separation type pile plate structure of high-speed railway |
| CN111235967A (en) * | 2020-03-09 | 2020-06-05 | 中铁二院工程集团有限责任公司 | High-speed railway water-soaking embankment structure in seasonal frozen soil area and construction method |
-
2016
- 2016-01-17 CN CN201620040871.0U patent/CN205591056U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544311A (en) * | 2016-01-17 | 2016-05-04 | 中铁二院工程集团有限责任公司 | Water-rich foundation frost-heaving-resistant ballastless track embankment structure |
| CN108130826A (en) * | 2018-01-18 | 2018-06-08 | 中铁二院工程集团有限责任公司 | A kind of karst railway bed substrate antidumping foundation reinforcing structure |
| CN110565449A (en) * | 2019-09-26 | 2019-12-13 | 中铁二院工程集团有限责任公司 | Anti-uplift and anti-separation type pile plate structure of high-speed railway |
| CN111235967A (en) * | 2020-03-09 | 2020-06-05 | 中铁二院工程集团有限责任公司 | High-speed railway water-soaking embankment structure in seasonal frozen soil area and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160921 Effective date of abandoning: 20180427 |
|
| AV01 | Patent right actively abandoned |